I haven't noticed that any of the products I use discolor my gray. I notice it's more discolored in summer so I think it's mostly sun, wind, and spending more time in smokey bars that affects my hair color.

PS Your gray stripes are gorgeous.
In Western PA
Found NC in 2004. CG since 2-05, going grey since 9-05. 3B with some 3A.
Hair texture-medium/fine, porosity-normal except for the ends which are porous, elasticity-normal.
Suave & VO5 cond, LA Looks Sport Gel, oils, honey, vinegar.
http://public.fotki.com/jeepcurlygurl/ password jeepy **updated Aug 2014**